Development

Add-ons Discuss here how to develop add-ons and ask conceptional questions on the technologies, concepts, etc. Misc Discuss here miscellaneous stuff around development of openHAB. Features This category can be used to inform user and other developers about new features under development and to discuss details about them. Marketplace This category can be used by everyone that is looking for custom development work around openHAB or professional services like help on installation / customisation or similar tasks. IDE & Build Discuss here how to use/setup the IDE and build systems. Documentation Topics around how the documentation is organized, built and structured.

Topic	Replies	Views	Activity
About the Development category Development	0	2463	January 18, 2019
Rules and rule templates YAML integration Development rules , template , rules-dsl , yaml	257	1550	April 18, 2026
YAML File-based Pages and Widgets Features	19	148	April 18, 2026
Lambda Heat Pump in OpenHab Add-ons modbus	121	2538	April 17, 2026
How to handle historic values from an API service Add-ons	5	100	April 3, 2026
Feature: Native App for Sailfish-OS Features	10	248	April 3, 2026
Empty "firmware" documentation chapter "TODO" Documentation	0	58	March 31, 2026
Resolve "demo app" after `SitemapProvider` was added IDE & Build	1	31	March 28, 2026
BLE 5.0 garage door controller integration - GATT service discovery help Misc	0	34	March 22, 2026
Supporting spot energy pricing Add-ons	79	896	March 7, 2026
Solvis heat pump - Should I create a binding (and if yes, how complex should it be)? Add-ons modbus	3	139	March 3, 2026
Pax Log4J logging not working in eclipse IDE & Build	0	28	February 26, 2026
Observability support for openHAB based on OpenTelemetry Misc observability , opentelemetry	5	250	February 19, 2026
Upgrade instructions to add new Channel Group? Add-ons	2	85	February 15, 2026
Problems creating dynamic channels Add-ons	1	63	February 13, 2026
Eclipse files in Git repos Development	10	162	March 17, 2026
MainUI: How to handle HTTP status 204? Development main-ui	2	89	January 29, 2026
Usage of org.apache.commons.math3 Development	8	98	March 12, 2026
Feature Request: Filter Items by State NULL/ON/OFF in Admin Interface Features featurerequest , items , itemstate , filter	2	42	January 29, 2026
VsCode: No such compiler 'eclipse' IDE & Build vscode	4	105	January 27, 2026
Examples of Image channels and jpgs? Add-ons	4	87	January 25, 2026
VSC always change .classpath file of each bundle IDE & Build visual-code	7	1182	January 24, 2026
OH 5.1(?) Discovery bug (I think) Add-ons discovery	4	120	January 10, 2026
Eclipse 2025-12 - Oomph installer fails Development	7	116	February 20, 2026
State Filter (Range Filter) Profile Features transformations , filter	84	1389	January 6, 2026
Maven build for the first time ;-) Development addons	5	98	February 17, 2026
Eclipse code formatter settings for OH IDE & Build	0	58	December 30, 2025
OH, Threads, and Java Project Loom Misc	19	753	December 25, 2025
Installing KAR add-ons through the addons folder Add-ons karaf	35	576	December 22, 2025
KNX secure - initial implementation Add-ons knx , binding-development	21	2811	December 21, 2025